Rugs will generally loose the latex backing on the rug over time; commonly the top of the rug will outlast the bottom. The latex on the back of a rug can be vulnerable to the heat of a laundry dryer or even the heavy foot traffic for long periods. However, the good news is the rubber backing of your favorite rug is reparable with a few supplies from your local hardware store.
Things you will need
Wash the rug in the washing machine on the gentle cycle. When the washing machine has completed the wash cycle, hang the rug to dry completely. Do not dry the rug using clothes dryer.
Lay the throw rug on a flat surface where it can remain for at 24 to 48 hours ensuring the rug will dry completely. Make sure the temperature where the rug is located will be at least 65 degrees Fahrenheit.
Position the rug with the rubber backing facing upward. Remove any loose particles of the old latex on the rug by scraping or cutting it away using scissors.
Use masking tape to tape the outer edge (on the backside) of the rug to prevent any liquid latex from staining the fabric.
Open the new can of liquid latex with a screwdriver, or paint can opener. Stir the contents of the liquid latex with a clean stirring stick. Stir until all of the settled particles of the liquid latex thoroughly mixes.
Apply one coat of liquid latex to the back of the rug with a disposable paintbrush. Start in one corner of the rug, and brush a liberal amount of the liquid latex to the entire back of the rug. Let the latex to dry for 24 hours or until the latex is no longer sticky or wet to the touch. Make sure the liquid latex is completely dry before moving on to the next step.
Apply a second coat of liquid latex to the entire back of the rug. Allow the rug to dry for 24 to 48 hours before use.